you can't run 100 units.
you can run 80-90.
350 x 80 percent = 280 kwatts once you derate for safety.
280/3 = 93
that is assuming every s19 uses 3kwatts. that is a fair assumption.
cooling is complex. but a s19 pushes about 450-500 cfm
90 x 500 = 45000 cfm minimum exhaust.
three of these would work/
https://air-movement.com/product/48sw750-slantwall-exhaust-fan/https://www.globalindustrial.com/p/hessaire-48-belt-drive-box-fan-48x750s-n-1hp-1ph-19210-cfm-with-shutter?and two of these for intake.
https://hessaire.com/products/mc92-m350https://www.acehardware.com/departments/heating-and-cooling/air-conditioners-and-coolers/evaporative-coolers/4893236?90-m2 is 900 square feet or 30 by 30 foot room
if you have room for the 3x 48 inch exhaust fans on 1 wall
and room for intake air at least 4 x 48 inch square I would think you can cool it.
air >>>> wall with openings >>>> 2x 11000 cfm evaporator coolers >>>> GEAR >>>>> EXHAUST FANS>>>>>>
USE WASHABLE AIR FILTERS LIKE THESE
https://www.cartergoods.comhow to wire by 16amp do you mean a 20 amp derated to 16 amp for 24/7/365 use.
as 16 x 240 = 3840 watts derate to .8 x 3840 = 3072 you would be borderline.
here in USA we use
a 20 amp. so 20 x 240 = 4800 watts derate by .8 = 3840 watts and no issues.
I do recommend separate circuits for each unit.
if you do 2 to one 40 amp you could have one unit shut off and not pull power while the other shorts and pulls 40 x 240 = 9600 watts